The verses 1:11-13 contain distinct statements made about us (“we”) and about “you”..…
In decisive passages of Ephesians…the change between “we” and “you,” “our” and “your,” indicates something other than…an appeal to a common Christian creed, or a cavalier, unnecessary, and meaningless change of diction: as observed earlier, those addressed in Ephesians are all of Gentile origin. They have been “apart from the Messiah, excluded from the citizenship of Israel, strangers to the covenants . . . bare of hope and without God” (2:12). These formerly hopeless people are distinct from other men who have equally been “under the wrath [of God]” (2:3), but were privileged to be the “first to set” their “hope upon the Messiah” (1:12). While the latter call themselves “The Circumcision” because of a “handmade operation,” the former are called “The Uncircumcision” (2:11).
In 2:17 (cf. 13), one of these two groups is called “those who are far,” the other, “those near.” 2:19 speaks of recently naturalized citizens, or newly adopted children who are now among the saints as members of God’s household. Five times the first group is called “the nations” or I “the Gentiles”; in 2:12 the second group is explicitly identified as “Israel.” It is emphatically asserted that Gentiles have now been made fellow heirs, fellow members, fellow beneficiaries in an heirdom, a body, and a promise that were established already before any Gentiles were given access to it (l:18c; 2:19; 3:6). Gentiles now partake of Israel’s privileges and possess the same rights and titles as were formerly reserved for the Jews only….
Just as in Rom 1:16, so also in Ephesians, Paul calls election and salvation by grace events that concern “the Jew first and [also] the Greek.”
Markus Barth, Ephesians: Introduction, Translation, and Commentary on Chapters 1-3 (Anchor Bible, Vol. 34), 130-1, emphasis added.